Improvement in ploughs



@uiten itstrs gstnt @frn Letters Patent No. 74,183,dated .February 4, 1868.

IMPROVBMEFT IN PLOUGHS.

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TO ALL WHOM IT MAY CONOERN:

Be it known that I, CHARLES WHITE, of Bladensburg, in the county of Prince George, and State of Mary*- land, have invented certain new and useful Improvements in Ploughs; and I do hereby declare the following to be a full, clear', and exact description of the same, reference being had to the accompanying drawings, in which- Figure 1 is a perspective view of a plough embracing my improvements.

Figure 2 is a vertical longitudinal section through the beam and its pivotal support, showing the arrange ment of the yielding draught-rod and spring; and i Figure 3 Ais a similar section of the beam, showing a different application of pivot and spring.

Similar letters of reference denote corresponding parts in all the figures. i

My invention consists, first, in a novel arrangement of devices for effecting the double adjustment, that is to say, the vertical and horizontal or lateral adjustment of the plough-beam relative to the plough; second, in the manner of pivoting the beam through a forked pivotal standard, or its equivalent, mounted in a horizontal lug o'r {langeof the mould-board; third, in a novel form or construction of the plough-beam; fourth, 'in the 4employment of aL yielding tension Vor, draughtvrod passing lengthwise centrally through the beam; and fifth,-

in the employment of a spring, in combination lwith the draught-rod, whereby the latter is made to yield and relieve the strain upon the team and plough in case the 4latter strikes an obstruction, as hereinafter explained.

To enable others to understand and use my inventinI'will proceed to describe the same with reference to i the drawings, in which A represents the mould-board, B the point, C the land-side, andl) the handles, which parts are combined iu the usual manner, and each of which may be of any usual or desired construction, except that the mould-board, or, if preferred, the land-side, is extended upward, and is provided with a horizontal flange or lug, a, which Vis perforated to receive and form a bearing for the pivotal support of the plough-beam. E is the beam, which is cast or otherwise formed in one piece, and is provided upon its opposite sides with semi-cylindrical ribs or corrugations running lengthwise of the beam, 'and arranged or located alternately upon opposite sides thereof, in themanner represented in the drawing. These alteinatingsemi-tubes or eorl rugations perform the double function of strengthening or stitfening the beam, thereby admitting of the employ ment of a lighter beam than those in ordinary use, and at the same time affording hearings for the reception and proper support of the draught or tension-rod F passing .lengthwise through the same. The beam E is mounted `in an upright standard or pivotal support, G, which has its bearings inv the luga of the mould-board, and which `may be forked to receive the beam, as represented in figs. 1 and 2, or squared and passing through a. slot or perforation in the beam, as shown in'ig. 3. In this latter construction the slot or perforation in the beam should be enlarged or elongated at the top, to admit of the vertical adjustment of the beain hereinafter provided,for. In rear of the pivotal support, or at any other suitable point in its length, the beam is p ro vided with a drum, or a cylindrical or partial cylindrical socket, H, which may be cast in one piece with, or otherwise rigidly united to, the beam; and adapted 'to receive a spring, either of rubber, or a coiled or other suitable form of metal spring, to which the'tension or draught-rod is connected, as shown in figs. 2 and 3. '.lhe rear end of the drum is left opento receive the spring, and may be closed after the spring and rod are properly` adjusted in the drum, by means of a removable head, h, or, if` preferred, the head may be made in the form of a close-fitting plunger, attached to the rear end of the draught-rod, for the purpose of excluding dirt,which would interfere with the free action of the spring in 'the operationpf the plough.' Theil-ear end of the beam is provided with a slot or perforation, e, through which, lJy-means of a set-screw, or bolt and n'ut,

said rear end of the beam is connected to the upright slotted arm of an angle-iron, I, the horizontal arm of` which is connected in a similar manner to a slotted transverse bar, d, attached at its opposite ends `to the rear inner faces of the land-side and mould-board, or to the plough-handles, as may bepreferred. The 'slot jin bar J should bel made in the arc of a circle, of which the pivotal support G is the centre, so that the lateral adjustment of the beam may be effected without cramping or binding theadjusting-devies; and the opposing faces of the angle-iron, beam, and transverse bar may be ribbed, if desired, to prevent slipping of the parts when properly adjusted. 1

The manner of effecting the adjustment of the beam and plough so as to cause the latter to take more or less land, and for varyingthe depth ofthe furrow, will be understood without further description. The draught of the'team, instead of beingappled directly to the forward end of the beam, in the usual manner, is applied tothe forward end ot' the tension or draught-rod F, at F, an'd said rod, through its spring-connection with the beam, in the manner explained, allows the plough to yield in the event of its strikingr a large stone or other obstruction, thereby obviating, to a vgreat extent, the strain upon the team, and the danger of breaking the plough-point consequent upon the striking of such obstruction by plouglis constructed in the usuel manner. Having new described my invention, what I claim asnew, and desireto secure by Letters Patent, is 1. The angle-iron I, in combination with the slotted transverse bar J', and the rear end of the plough-beam,

v for effecting the double adjustment of the latter, in the manner described.'

2. The pivotal support G of the plouglbbeam E, in combination with the` perforated horizontal Aflange or lug a, on the mould-board, as described. 'i l 3. The plough-beam, provided with tubular or semi-cylindrical ribs or eorrugations, substantially as described. Y I

,4. The yielding tension' or draughtd'od, passing centrally through, or having an equivalent' arrangement relative to, the beam, es described. l

5. The yielding draught-rod, in combination with the spring, operating :is described.

6. The drum or socket, formed in or attached to the beam, in combinzition with the spring and dranghtrod, as described.

' In testimony Where0f,I have'hereunto subscribed my name, this ninth day of January, 1868.

' I CHAS. WHITE. Witnesses:

EDM. F. BROWN,

'Homme H. SMITH. 

